Add uv ecosystem to dependabot and drop weekly lockfile workflow #2817

Job	Run time
checks / readme-snippets	15s
checks / pre-commit	42s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 0s
checks / test (3.11, lowest-direct, windows-latest)	2m 47s
checks / test (3.11, locked, ubuntu-latest)	1m 2s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 8s
checks / test (3.12, lowest-direct, windows-latest)	1m 30s
checks / test (3.12, locked, ubuntu-latest)	1m 1s
checks / test (3.10, locked, windows-latest)	1m 34s
checks / test (3.14, lowest-direct, windows-latest)	1m 45s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 9s
checks / test (3.10, lowest-direct, windows-latest)	1m 36s
checks / test (3.10, locked, ubuntu-latest)	1m 4s
checks / test (3.12, locked, windows-latest)	1m 30s
checks / test (3.13, lowest-direct, windows-latest)	1m 57s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 3s
checks / test (3.13, locked, ubuntu-latest)	58s
checks / test (3.11, locked, windows-latest)	1m 28s
checks / test (3.14, locked, ubuntu-latest)	1m 59s
checks / test (3.14, lowest-direct, ubuntu-latest)	54s
checks / test (3.14, locked, windows-latest)	2m 22s
checks / test (3.13, locked, windows-latest)	2m 5s
all-green	2s
	30m 51s

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